Smoothing-iron.



F. BETTYIv SMOOTHING IRON.

APPLICATION FILED FEB.2I,1916.

Patented May 29,1917.

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FRANK BEATTY, OF SEATTLE, WASHINGTON.

SMOOTHINGr-IRON.

Specification of Letters Patent.

Patented May 29, 1917.

Application filed February 21, 1916. Serial No. 79,775.

To all whom t may concern.'

Be it known that I, FRANK BEATTY, citi- Zen of the United States, residing at Seattle, in the county of King and State of Washington, have invented a certain new and useful Improvement in Smoothing-Irons, of which the following is a speciiication.

My invention relates to improvements in smoothing irons of that class which is einployed in the operation of smoothing the asphaltum surface of street pavements., and the object of my invention is to provide a smoothing iron which shall embody a container for fluid fuel, and a fluid fuel burner together with devices for regulating the operation of said burner, whereby said smoothing iron may be maintained at such temperature as may be required to soften the asphaltum surface of a pavement during the well known operation of smoothing such surface. v

I accomplish this object by devices illus- Ltrated in the accompanying drawingswherein Figure 1 is a view in side elevation of a smoothing iron embodying my invention; Fig. 2 is an enlarged view in horizontal section on broken line af, of Fig. 1 s howing minor parts of the same; Fig. 3 is an enlarged view of the under side of associated interior parts of the structure of Fig. 1, the inclosing box-like portion, whose bottom surface constitutes the ironing surface of said structure, being removed; Fig. 4 is an enlarged view in vertical mid-section of the structure of Fig. 1 with its handle broken away; and Fig. 5 is a view of the same on broken line y, y of Fig. 4.

Referring to the drawings, throughout which like reference numerals designate like parts, 6 is an iiiclosing case of oblong form, the opposite end portions 7 and 8 of whose bottom surface are curved upwardly to adapt such surface to serve as a smoothing iron, the rear end wall of said inclosing case 6 having a portion 9 which is curved upwardly and which extends rearwardly from its vertically disposed portions.

Removably secured to the top edges of the inclosin'g case 6, by means of screws 10, is a cover 11 to which are attached all of the operative parts of the structure as hereinafter described.

Integral with the top side of the cover 11 is an internally screw-threaded handlesocket 12 which is disposed to extend obliquely upward in a rearward direction and disposed within the screw-threaded portion of said handle-socket 12 is a screwthreaded end of `a handle comprising a metal tube 13 that extends obliquely upwardly and rearwardly for a distance to adapt it to be conveniently manipulated; which tube 13 may serve as a container for fiuid fuel.

That end of the tube 13 within the handlesocket 12 is tightly closed by a plug 14 while the other end thereof, as shown in Fig. 2, is provided with a bushing 15 disposed to fit tightly and be secured therein; said bushing 15 having an outwardly projecting portion that is provided with an external screw-thread.

Screwed on to the screw-threaded portion of said bushing 15 is a sleeve 16 that is provided with thumb-wings 17 whereby said sleeve 16 may be conveniently screwed on to and unscrewed from said bushing 15.

The sleeve 16 is provided with a concentrically disposed screw-threaded hole of smaller diameter than the internal diameter of the bushing l5 and within the inner end portion of said smaller screw-threaded hole is screwed the end of a check-valve 18, of well known form, while the outer end portion of said smaller screw-threaded hole is adapted to receive a screw-threaded nipple of a hose (not shown) that may be connected, at required times, to a source of compressed air.

Between the outer end surface of the bushing 15 and a shoulder formed in the sleeve 16 there is disposed a gasket 19 of flexible material, whereby may be sealed the joint between said sleeve and said busliing 15.

The sleeve 16 and its associated parts are surrounded by a projecting tube 20 which is screwed on to the adjacent end of the tube 13.

As thus arranged the tube 13 may serve as a container for fluid fuel, as mineral oil, gasolene and the like, which fluid fuel may be introduced into said tube 13 by removing the sleeve 16 with its attached check-valve 18 and after a suiiicient quantity of fluid fuel is disposed within said tube 13 to partly fill it then the sleeve 16 may be screwed tightly into its place whereupon the nipple of a hose leading from a` source of compressed air may be connected with the outer end of said sleeve 16 which compressed air may then force its way into the tube 13 of the space within. the inclosing case 6 integral walls of a pocket 21; and`v extending through said cover- 11 is al passagewayI 22; for air.

The rearwardv endv ofy the cover 11 is ad: jacent to the vertical portiony off the rear end wall of. the in closing case 64 whereby the upwardly curved and outwardly projecting portion EL is uncovered, and fixed in! the rearward; wall of the pocket 21. to.

extend therethrough is a manually controllable needlefvalve 2 3` which may be adjusted by inserting ones thumb and finger down into= the uncovered opening formed by the outwardly projectingl portionl 9- of: the rear wall of said inclosing case 6.

Eisposedv to extend through the forward endl wall; of saidy pocket; 21 ati a point directly opposite the outlet endy of the needle'- valve 23 is the end; of; a pipe 24 which` extends for-wardly to connect with a T ttingf 25 which is: secured by an integral bracket 2 6vtothe forward; end, portion ofv the undersideI o f` they cover 11,` and connectedA to each of;V theoppositelyxdisposed other ends of said: 'ljfltting 2,5 is aJ burner tip, asl burner tips 27 com risinO'fa i `e which; isbentI to turn a P e from the 11 fitting- 25 to extend rearwardly andt parallel with the side walls. ofi the inelosing case 11, the rearward end of: each;

ofL saidburner tips 27 beingclosed with a; cap,`as caps123, and each of said burnerI tips 27 is provided with a plurality-of; apertures, aszaperztures-29, throughthe underside of;l its wall,x through which apertures 29: fluidl fuel. may be emitted toburn; with a downwardly directed! flameV that may impinge against the bottom@r wall of. the inclosingl caseY 11 to heat such bottom wall.

Fluidl fuel; is. conducted from the lower end portion of ther tube,l 13 intoy the valve chamber of thelneedle-valve 23 by meansof; a conduit comprising a pipe 30 in connection with: ai smallerpipez 31, said pipe 30 beinggdisposed to eXtend downwardly. from t-hevlower end pOltiOn Of the tube 13 through;

the. cover- 111 intotheV space within the inelosinggcase 6; where it; is connected; by an elbow 32 wit-hthe smallerpipe 31, whichextendslforfwardly l to 1the front 'end portion of:

thespace .within the inolosingcase @thence transversely thereof;` thence rearwardly. to the! rearward end1 thereof, thence to 1 connect with,said valvechambergin which position' said pipe-31 will'begsubjectedito the-radiantheat ofthe flames of the; burner tips; 27 to;V

away between adjacent ones of the screws 1'0' to provide air passageways 33 through which air may enter the inclosingoase G for purpose ofeombustion; and in order to regulate the flow of such air through said passageways 33 I have provided a. slidabl'y: adjustable shutter, as shutter 34e, removably disposed, oni each-L of;V the; outer sides of: the: opposite; side walls.. of; said inclesing;v case 6, as more` clearly indicated; in. Fig: 5;..

The Operation of my smeothing iron may be described as, fellows r; Theneedle--valve 2 3 beingclosed, then the; sleeve 116', with its: attaehed check-waive- 13;,` is removed and fluid fuel, as gaselene-, is poured intothe tube 123;' until it isA half Qr threequa-rters faille; then said; sleeve 16 withL itsy check-.valvex 1:8.is re;- placedl to, screw tightly against the gasket 19,;thenl the nipple ofV a hose leading fromV a;

supplyl o/fhighlyV compressed is screwedx inte the Outer elid; 0f:- the Sleevelf whereby compressed a-ir may enter the tube 13; to ill thel space, above the fluich fuel therein with: suclr highly compressed1 after whihf the; hose withits :nippleis; removed.

The tube 13 now being charged-,witlrfluid fuel underv great pressurethe needle-ualve 23 is slightly opened to admitfluidfuel; inte thepocket 2,1: to. rise therein untili it flows through the pipe 2.4i into; the; burner tips27 to; beI emitted; therefrom through the` aper` tures 2Q tofalh on to the bottom ofthefinrclosing; casey 6 and thereupon. thel needle-V valvef23 isclosed andlthe fluid? fuel in; the bottom portion ofi said; inclosing; casey 6% iS-A ignited to` cause its flame; to.` heat-. the*l tube; 3 1 and i the 1 associated,- partsoftv the4 structure; and; after I such parte; are wheiitedgby: the;- burning or suela fluid fuel thenl thee needle-valve isv openedl to, admit a continuous How; ofsuch fluid fuel intor the pocketV 21-i inV theV form of a finej'etor sprayvwhichiwllbedir rected intothe pipe=21 drawing with-.it air through-the Vpass ageway 22'to mix:f therewith, which mixturewillpassginto the burner tips: 247 to beemittedfrem the apert-ures-29inlthe formi of' gasfori vapor to; form a; fiame; that willbe directed downwardlyY against the bot,- tom-v of the inclosing case while the rauiiantheatofi such, flame will! keep the1tube-31 and; its `associated partsat such heatgas willgcause; the iuid fuel therein to beemittedgfrom-,the needle-valve 23 rinthe for-m; of: vapor:A

After the inclosing-case isheatedgto a re;- quired degree then the tube,13servingfas a1 handle, may bel manipulated to move'y the structure with the bottom surfaceof; itsfi'nT` closingcase Glincontact with the surface of anl asphalt pavement, tofbe smoothed Obviously,. changes may; bemade inr the forms, .dimensions and arrangement of-partsof my invention without departing from the spirit thereof.

What I claim is:

l. A smoothing iron which embodies an inclosing case that is provided with a surface that is adapted to engage with a surface that is to be smoothed; a metal cover removably secured in a position to cover the top of said inclosing case; a pocket whose walls are integral with the under side of said cover and disposed to project downwardly into the space within said inclosing case; a passageway for air disposed to extend through said cover into said pocket; a burner tip secured to the under side of said cover; a pipe disposed to connect the intel rior of said pocket with said burner tip; a

valve secured in a position to project its delivery end through a wall of said pocket; a hollow handle one end of which is attached to the top of said cover so that it may project obliquely upward therefrom, said handle being of tubular form and adapted to contain iiuid fuel and air under pressure; a tube disposed to conduct iuid fuel from the interior of the lower portion of said handle into said valve; a bushing secured in the other end of said handle; and a check-valve ref movably secured in said bushing, the inlet end of said check-valve being adapted to be connected with a nipple of a hose through which compressed air may be forced to enter said handle through said check-valve.

2. A smoothing iron including a case, a cover removably secured in position on said case, a mixing chamber formed integral with the under side of said cover and adapted to project downwardly into the space within said case, an air conduit disposed to extend through said cover into said mixing chamber, a burner tip secured to the under side of said cover, a pipe extending between the mixing chamber and said burner tip, a needle valve carried by the mixing chamber, a hollow handle connected to said cover, said handle adapted to contain fluid fuel and compressed air, means forming communication between the handle and valve, and a check valve removably secured in the handle, the inlet end of said check valve being adapted to be connected with a nipple of a hose from which compressed air may be forced to enter said handle through said check valve.

In witness whereof, I, hereunto subscribe my name this 9th day of February A. D., 1916.

FRANK BEATTY.

Witnesses:

FRANK WARREN, O. JOHNSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

